Author: hakea21

Grand Canyon Colorado River High Plateau Region Northwestern

Grand Canyon Colorado River High Plateau Region Northwestern

Canyon formed by the Colorado River in the high plateau region of northwestern Arizona. The Grand Canyon is famous for its stunning designs and hues. It is believed that the Grand Canyon lies in the southwest portion of the Colorado Plateau. Lava flows and horizontal rock layers cover a vast portion of the southwest United States. The vast, intricately sculpted valley of the canyon has between its walls numerous imposing mountains, buttes, ravines and gorges.

Grand Canyon Highest

It ranges in size from 175 feet 160 meters up to 18.2 miles 29 km. That is a winding path starting at the mouth of the Paria River, near Lees Ferry and along the northern border between Arizona along with Utah and Utah.

It then extends all the way to Grand Wash Cliffs, near the Nevada state line, an area of approximately 277 miles 446 km. The initial portion of the canyon from Lees Ferry to the confluence with the Little Colorado River is known as Marble Canyon. Marble Canyon is a tributary of the Colorado River and its surrounding plateaus and is part of the Grand Canyon.

The deepest parts of the Grand Canyon lie more than 1 mile some 6,800 feet 1,800 meters approximately beneath its rim. The most dramatic and deepest section, measuring 56 miles and 90 kilometers, lies within the middle part of Grand Canyon National Park. This encompasses the length of the river’s tributaries all the way from Lake Powell formed by Glen Canyon Dam in 1963 from Lake Powell formed by Glen Canyon Dam in 1963 Lake Mead formed by Hoover Dam from 1936.

The North Rim, at approximately 8,200 feet 2,500 meters above sea level, discover in 1936. sea level It is about 1200 feet 365 meters higher than the South Rim. Generally, the Canyon is red, however, each stratum or group of strata is distinct in color gray and buff, delicate pink and green, or in its deepest areas it is slate gray, brown and violet.

Geologic History Of Grand Canyon

While it’s incredible grandeur and beauty are among the main tourist attractions that make up The Grand Canyon, perhaps its most significant and compelling aspect is its timeline of Earth and the past which is apparent in the exposed rock that forms the walls of the canyon. For its extensive and deep geologic records, the Grand Canyon is the only place on Earth that can compare to it.

The canyon’s history, however, is far from complete and comprehensive. There are massive gaps in time and millions of years are not record due to the strata’s gaps. This is due to huge quantities of rocks getting remove through erosion or due to minimal or no formation of material. So, rock formations of vastly diverse ages can be separated by a thin, distinct surface, which reveals the huge gap in the course of.

The most important aspect of the ecosystem that causes the canyon is often overlook or not appreciated. If it weren’t due to that desert climate within the area, there would have been none Grand Canyon. Rainfall caused slope erosion, and the stairs-step topography is long gone, as well as the distinctive carvings and multicolored rock formations.

The Painted Desert southeast of the canyon that runs along the Little Colorado River would be lost. The picturesque Monument Valley to the northeast close to the Utah State Line would be only a few hillocks with rounded edges

Present And Past Biological Evolution

Terrestrial plants and fossils of animals are scarce among the rocks of the Grand Canyon’s sedimentary deposits as a result of the age of the rocks. Fossils typically belong to primitive algae, and include mollusks, trilobites, corals along with other types of invertebrates.

The animal life that inhabits the Grand Canyon area today, however, is diverse and abundant. Squirrels, coyotes, deer, foxes, badgers, bobcats, rabbits, chipmunks and kangaroo rats are common mammals. Furthermore, the area is home to a variety of bird species which include raptors like peregrine falcons and bald eagles and the rare California condor. Fish species include trout as well as in the Little Colorado River the uncommon Humpback Chub Gila cypha.

Plant life can also be diverse. At the bottom section of the canyons, temperatures during the summer can rise to 120 degrees 49 season. There are willows and cottonwoods, which require a lot of water during the growing season. Plants resistant to drought include tamarisks Agves, yuccas, and many species of cactus. There have been efforts to eradicate.

There are a few tamarisks stands that have become invasive. The canyon rims, both to the north and south there is an extensive range of vegetation. South Rim, which receives about 15 inches 380 millimeters of rain, is a mature pine forest with ponderosas, as well as scattered pine forests and the juniper.

The bush vegetation is mainly composed of scrub oak, Mountain mahogany large sagebrush, and large and large sagebrush. Along the North Rim, which receives 26 inches 660 millimeters of annual rainfall. In addition to white pine, ponderosa pine, Douglas fir, and aspen, it contains a forest oasis. In less optimal conditions, the plant life goes back to desert species.

History Cliff Dwelling Ruins Canyon

Numerous pueblo and cliff dwelling ruins and the accompanying artifacts that indicate the presence of prehistoric people. The first description of how it viewed by a European is attribute to the Francisco Coronado expedition in 1540. This is followed by the subsequent discovery by two Spanish priests, Francisco Dominguez and Silvestre Velez de Escalante in 1776. In the early 1800s, trappers looked into the canyon.

Various expeditions led by the U.S. government to explore and map the West began recording information on the canyon. The first time that we saw a boat drop into the canyon was in 1869. This was part of a trip to the region conducted by geologist and ethnographer John Wesley Powell. In the 1870s, Powell as well as others led subsequent expeditions to the area.

A part of the canyon declared a Grand Canyon Forest Reserve by the president. Benjamin Harrison in 1893. It was later designate as a game preserve 1903 as well as a national memorial 1908 by the president. Theodore Roosevelt before the U.S. Congress officially established Grand Canyon National Park in 1919. The park’s boundaries greatly expanded in 1975 with the expansion of adjacent federal and other land. In 1979, the park declared as a UNESCO World Heritage site.

The three Indian reserves Navajo, Havasupai, and Hualapai are located near three reservations Navajo, Havasupai and Hualapai that Grand Canyon. Kaibab National Forest surrounds a major part of the national park in the south and north.

The Grand Canyon National Monument designated in 2000 is located to the north of the western part of the park. It extends westward until north of the Nevada boundary. Other public lands that border the comprise Pipe Spring, Rainbow Bridge Grand Staircase and Grand Staircase Escalante.